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AP EAMCET · PHYSICS · Laws of Motion

A particle of mass \(m\) is suspended from a ceiling through a string of length \(L\). If the particle moves in a horizontal circle of radius \(r\) as shown in the figure, then the speed of the particle is

  1. A \(r \sqrt{\frac{g}{\sqrt{L^2-r^2}}}\)
  2. B \(g \sqrt{\frac{r}{\sqrt{L^2-r^2}}}\)
  3. C \(r \sqrt{\frac{g}{\sqrt{L^2+r^2}}}\)
  4. D \(g \sqrt{\frac{r}{\sqrt{L^2+r^2}}}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(r \sqrt{\frac{g}{\sqrt{L^2-r^2}}}\)

Step-by-step Solution

Detailed explanation

From the diagram,…
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